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Photo of Trichoderma atroviride SC1 v1.0
Trichoderma atroviride SC1 cultured on PDA medium for 11 days. Photo credit: Ales Eichmeier

Trichoderma atroviride SC1 (CBS 122089) is a mesophilic fungus as are most Trichoderma spp. (1) It is able to utilize a wide range of compounds as sole carbon and nitrogen sources. Fungal growth in culture media is superior with some nitrogen sources such Yeast Extract, Nitrite, Tryptone, Peptone, Glutamine and Asparagine or some carbon sources such Mannose, Galactose, Sucrose, Malt Extract, Cellobiose Glucose and Threalose. T. atroviride SC1 survives in a temperature ranging from −1 to 35° C and grows in a range of temperatures from 5 to 30° C. The optimal temperature for growth is 25° C ± 1° C, although fungal radial growth at 20° C is not significantly different than the growth observed at 25° C. The maximum temperature for T. atroviride SC1 survival (30° C) is lower than human body temperature, which is a good indication that this fungus is not pathogenic to humans. Trichoderma atroviride SC1, is widely used as a biocontrol agent, i.e. to treat fungal diseases of plants. It can be used also as an additive, an emulsifier, a plant nutrient, a wetting agent, a plant micro-nutrient. The strain SC1 is one of the most famous Trichoderma strains in industry. It is used for treating or preventing a plant disease caused by a pathogenic fungus selected from the group of those causing: trunk diseases (Phaeomoniella chlamydospora, Phaeoacremonium minimum and Fomitiporia mediterranea), foliar diseases (the powdery mildew causative agent Podosphaera xanthii), fruit and flower diseases (Botrytis cinerea) and root diseases caused by Armillaria genus (A. mellea and A. gallica).


1. Klein, D., and D. E. Eveleigh. "Trichoderma and Gliocladium." Trichoderma and Gliocladium (1998): 57-69.